I am going to dissent for 3 reasons, though I am not sure I am seeing everything accurately.... If the current wall lines up with the rest of the wall to the right of the hall (can't tell with DH's feet there), I might leave it as is. Depends on the size and shape of the main room and whether that 'bump in' would look funny in that room. Two, consider the doorways and hallway headers. The opening to the room to the left (the one with the HWF) and to the hall will be affected by the 'bump in'. Right now the openings are framed, giving you options for casing or paint color changes room to room. Think about that before you axe the defined transitions. Three, since the chair will move forward when the wall does, the "gained" space will be behind behind you when you sit at the desk chair. You could always put storage on that back wall - but the space is then the same size as it was, and that storage is visible from the main room. Careful design will affect how much storage and function you can squeeze out of the desk area as is. I think there is enough there to work with. Instead of moving the wall, I would concentrate on ceiling to desktop storage. Open or closed. that could hold a ton and would be visible only from the desk chair. A return of 1-2 feet would allow a 3 sided recess above the desk for 'mondo storage' and still leave excellent sight line from the desk chair to and from the larger room. Opposite the desk, make the area visible from the main room attractive and simple: a framed print with a wall mounted sliver of a credenza below. I really like designs that give a work area 'mondo storage' and sight lines that manage to conceal that storage but not the worker. You have that option here. Transoms would be great, but only if they look good from the main room.

To some degree, it's personal preference, and sometimes, it just depends on how the house ends up. I can see benefits to both. I've never lived in a closet-first house, and I've lived in two bath-first houses. The production home I'm building now also has a bath-first arrangement. I like the idea of not needing to pass through the bathroom when I'm putting away laundry, but I also like the idea of a closer toilet (my husband gets up in the middle of the night). I am in the habit of gathering my clothing *prior* to showering, whereas my husband likes the closet adjacent to the shower so he can go get his clothes afterward. We also like the idea of connecting the closet to the laundry room, and then connecting the laundry to the kids' bathroom (via a door or a pass-through), which requires a [master bed --> master bath --> master closet --> laundry --> kids' hall bath] sequence. I also strongly prefer all bedrooms on the same wing/side of the house. Honestly, I could live happily either way... The houses I grew up in never had a master suite, so I feel lucky to have it. :-)

This is kind of a "walk in but then don't move" closet. That's OK - I have one of those too.....mine is a touch wider (5.5'), but shorter. I agree that putting a hanging rack against the long wall will leave you with just under 3' of space between the racks and the wall (with the doorway), but that's still enough to stand there and choose what you're looking for; I know, because I've been doing exactly that for 12 years. However, it means you can't really put any storage furniture along the wall with the doorway.......So now you've got the back wall for hanging racks (you can do multi levels), and a very small amount of depth for shelves or a set of drawers at each short end. If you make the shelves on the short sides too deep (even where it won't bump into the doorway), it will conflict with the hanging clothes - either you won't be able to get to the shelves, or you wont' be able to get to the hanging things. (Of course, you could use a corner under a hanging rack for seasonal storage, only getting in there two or three times a year to switch out swimsuits and sandals for sweaters and thermal underwear.) You can still get creative with some of the space along the wall with the archway, using it for things that really have no depth to storing them -- a rack for belts or scarves, for instance, or maybe hanging jewelry storage. Also, remember to think about YOUR (collective) personal clothing storage needs, which aren't the same for everyone. I have very little need for full-length hanging space, for instance, as I wear almost no dresses. That means I can use half-height hanging space, and still have space for drawers and/or shelves beneath them......all my jeans and casual pants hanging over a chest of drawers.

I like the reflection you'll get from the window onto your mirrors above vanity. I like the semi-private toilet allowing 2 in bathroom. What about doing a built-in linen as suggested (more of a cabinet than a closet), which means no door needed. Then move door to the bathroom up near all the other doors. You'd need a different kind of door - it puts all 3 in the same spot and you'll have door swinging issues, but a pro here could offer suggestions on that. Would love to see photos. Bermuda - wow :)